Jerry Yang, along with fellow Stanford student David Filo, developed Yahoo to serve as a Web directory for online users. The creators originally named their search engine "David and Jerry's Guide to the Web." The name was later changed to Yahoo!, which, contrary to popular belief, is not an acronym for "Yet Another Hierarchical Officious Oracle."
According to Yang, the name "Yahoo!" was taken from the dictionary, and "It was reflective of the Wild West nature of the Internet." Since its inception in 1994, Yahoo! has become one of the most successful Internet search engines. Other companies, such as Microsoft, AOL and Prodigy, have proposed either mergers or acquisition deals, which were all turned down by Yang and Filo.